Finding the Third Proportional to 123,956.50 and 268,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,956.50 : 268,520.50 = 268,520.50 : x
2. Step 2: Convert to fraction form
   123,956.50/268,520.50 = 268,520.50/x
3. Step 3: Cross multiply
   123,956.50x = 268,520.50 × 268,520.50
4. Step 4: Simplify right side
   123,956.50x = 72,103,258,920.25
5. Step 5: Solve for x
   x = 72,103,258,920.25/123,956.50
6. Step 6: Final answer
   x = 581,681.95